Grit-mill.



Patented Aug. l2, |902.

C. B. ENGLISH &. J. W. THOMPSON.

GRIT MILL.

(Appncmm med Jn. 7, 1902.) v

Udo Model.)

ThE- l /7' fon mmnj'yngzb?? @y www ,W7/acc jampson,

UNITED STATES l PATENT i OFFICE.

CLIFTONv BENSON ENGLISH, OF EASTON'.LFENNSELMANIANAND'JAMES WALLACETHOMPSON, OF ELoOMSnUEEfNEw JERSEY.

GRIT-MlLL.

SPECIFICATIN forming part ofrfvetters ".lkfatent No. l706,645, datedAugust 1.2, 1902.

i Atpiicafutn riet Ia'nlit'ryv, 19025. sentirti. 88,811. (No man.)

To all whom it may concern,.- p

Beit known that we, CLIFTONBENSON Ene-` LISH, residing atrEaston, intheY county of Northampton and State of Pennsylvania,4

and JAMES WALLACE THOMPSON, residing at Bloomsbury, in the county ofHunterdon and State of New Jersey, citizens of the United States, haveinvented a new and useful Machine, of which the following is aspecification.

The invention relates to gritmills.

The object ofthe invention isto provide means for collecting the wasteor leakage from the mill at that point where theA sleeve from thefeed-hopper joins the trunnion.` ofL the mill, whereby such waste orleakage is reconducted to the screw conveyer and fed into the mill, andthus prevent it from falling upon the iloor.

A further object of the invention is to provide simple, durable, andinexpensive means which may be readily attached to mills now in generaluse and which will be effective in action.

With these and other objects in view the invention consists of certainnovel features of construction, combinationkand arrangement of parts,which will be hereinafter more fully described, and particularly pointedout in the appended claim.

In the accompanying drawings, Figure l is a longitudinal verticalsectional view of only that portion of a mill necessary to illustratethe application of the invention. Fig. 2 is an enlarged detail sectionalview of the sleeve. Fig. 3 is a vertical sectional View of the ring ofbuckets, and Fig. lLis a similar view at right angles to Fig. 3.

Referring to the drawings, l denotes the body of the mill, having hollowtrufnnions 2 and 8. This vmill may be of any well-known orapproved'type', and as it forms no part of the invention a furtherdescription thereofis not deemednecessary, unless it be stated that themill is filled haltV full of `pebbles and is adapted to be rotated inany suitable manner.

4 denotes the feed-hopper, and 5 denotes the sleeve, bolted to thefeed-hopper and extending into and communicating with the trunnion 3 andat a point on its upper side surrounded by said trunnion provided withan opening G.

7 denotes a,screwconveyenwhichlislo cated in the feed-hopper and extendsthroughf `said sleeve into the trunnion. This conveyor is operated fromany suitable source of power. As shown, it is connected to the trunnion3, 'andas said trunnion rotates the conveyer is also rotated.

8 denotes an annular row or ring of buckets provided with a lateralannular flange 9,whicl1 is bolted or otherwise secured to the end of thetrunnion 3. The buckets surround the inner end of the sleeve 5 and inthe rotation of the mill successively move over the opening 6 and gatherup the material which would otherwise `escape '.between the inner end of`the sleeve and outer end of the trunnion and carry it up and dischargeit through the opening 6, where it may be acted upon by the screwconveyorr to be carried into the mill. Thus is leakage at thispointprevented.

From the foregoing description, taken in connection with theaccompanying drawings, the construction, mode of operation, andadvantages of the invention will be readily understood without requiringan ,extended eX- planation.

Variousvchanges in the form, proportion, and details of Constructionmaybe` made within thescopc of the invention without departing from thespirit or sacrificing any of the advantages thereof.

Having thus described our invention, what we Claim,`and desire to Secureby Letters Patent, is

The combination with a grit-mill and its hollow trunnion, of afeed-sleeve communi= catin g with said trunnion and having an open-a ingsurrounded by said trunnion, and a ring of buckets rotating in unisonwith the trunnion and positioned to have their buckets successivelyregister with the opening in the sleeve,and a feed-conveyor extendingthrough said sleeve and designed to carry the material discharged bysaid buckets.l through said opening, into the mill, substantially as setforth.

CLIFTON BENSON ENGLISH. JAMES WALLACE THOMPSON.

Witnesses:

JOHN BRUNNER, FRANCIS I-IAGEE'IY.

